Oil separator

Abstract

An object of the present disclosure is to increase, in an oil separator, the removal efficiency of the oil contained in target gas. The oil separator according to the present disclosure includes: a plurality of separation disks that are rotatable together with a spindle and that are laminated in an axial direction of the spindle; a nozzle that is projected from a part of a peripheral surface of the spindle, the part being located below with respect to the separation disks, and that injects oil from an injection hole to rotate the spindle around an axis; and a housing that includes a cylindrical side wall and defines a chamber accommodating the spindle, the separation disks, and the nozzle. The oil separator is characterized in that a plurality of longitudinal ribs extending in the vertical direction are circumferentially formed on the inner surface of a body cover (the side wall).

1 . An oil separator for separating mist oil contained in target gas, comprising:
 a plurality of separation disks that are rotatable together with a spindle and that are laminated in an axial direction of the spindle;   a nozzle that is projected from a part of a peripheral surface of the spindle, the part being located below the separation disks, and that injects oil from an injection hole to rotate the spindle around an axis; and   a housing that includes a cylindrical side wall and defines a chamber accommodating the spindle, the separation disks, and the nozzle, wherein   a plurality of longitudinal ribs extending in the vertical direction are circumferentially formed on the inner surface of the side wall.   
     
     
         2 . The oil separator according to  claim 1 , wherein
 the housing includes a cylindrical guide rib at a position above the separation disks, and the guide rib guides downward fluid that is flowing along an inner surface of an upper case toward a center as viewed from above.   
     
     
         3 . The oil separator according to  claim 2 , wherein
 the guide rib includes a guiding nail projecting downward beyond a lower edge of the guide rib.   
     
     
         4 . The oil separator according to  claim 3 , wherein
 the guiding nail is composed of a plurality of small pieces disposed with a predetermined clearance from one another.   
     
     
         5 . The oil separator according to  claim 4 , wherein
 the small pieces are formed tapered off downward.   
     
     
         6 . The oil separator according to  claim 3 , wherein
 a projection part of the guiding nail is disposed in a range where wind generated by a rotation of the separation disks flows through.   
     
     
         7 . The oil separator according to  claim 4 , wherein
 a projection part of the guiding nail is disposed in a range where wind generated by a rotation of the separation disks flows through.   
     
     
         8 . The oil separator according  claim 5 , wherein
 a projection part of the guiding nail is disposed in a range where wind generated by a rotation of the separation disks flows through.